I don't know if this is already known, or obvious to others already, but in fiddling with both my own car's numbers, and with 4-bar-loss numbers across 60-odd cars, I've realized that Ahr & Hx readings vary perfectly linearly. (The linearity is different for 2011/2012 vs 2013 cars, though.)

For example here's Ahr vs Hx values at 4th bar loss for every 2011/2012 I could find:

sandeen wrote:I don't know if this is already known, or obvious to others already, but in fiddling with both my own car's numbers, and with 4-bar-loss numbers across 60-odd cars, I've realized that Ahr & Hx readings vary perfectly linearly. (The linearity is different for 2011/2012 vs 2013 cars, though.)

For example here's Ahr vs Hx values at 4th bar loss for every 2011/2012 I could find:

The car is usually driven 55 miles per day, 5 days per week, and charged from 2am to 6am Monday to Friday. Just to try something new I have been alternating between 100% and 80% charge every two weeks.